all now seems to be ok adjusting the tps with the throttle body off, to get 1005 ohms and relearning the ecu at idle for 10 mins so far the idle has remained at just under 1000rpm for the last 2 days on petrol or gas, Hooray. I am not sure if it was the relearn or the tps or perhaps a bit of both Ev...

well, things are looking better at last, I replaced the map sensor and the coolant temperature sensor, things seemed ok till I drove it then the idle speed was still up too high, I recall whilst trawling through these forums seeing something about the ecu needing to relearn, specifically idle, so I ...

Still no better, so far replaced iac valve tps, ambient temperature sensor (ait) I have a map coming this week, but there must be someone who has had experience of this type of problem to be able to explain what is going on or where the problem may lye, there is no maf ; map, ait tps iac oxygen sens...

just been to the lpg garage for a lpg service, tick over still just over 1000 does get higher after driving being on gas or petrol makes no difference (the gas system takes all its signals from the petrol side anyway, disconnect icv and revs drop to just below normal so we are still working on a log...

I am back to a faster tick over again, around 1000-1100 not the 850-900 it used to be, I am also thinking that it might be the lambda sensor as unplugging it makes no difference, going in for a checkup tomorrow (Tues) where all the sensor information will be monitored, so might get a definitive answ...

I know I am late to this discussion, but, my v70 has the b5252s engine, which only has one oxygen sensor, and its a titania one bosch don't make titania sensors, the ngk part number is 0TA4N5B1, check out the ngk site and you will find it listed for the b5252s engine volvos, dont you just love em wh...

thinking about your problem again, have you checked all the vacuum connections as an air leak would certainly give you a rising rpm. mine is dual fuel and it does the same on petrol as it does on gas, so fuel pressure is not an issue for me, nor is an injector problem however, mine has now decided t...

I have a similar problem with my na v70 2.5 tick over up to 12-1400 replaced iac, tps and I found a perished vacuum elboe which I found after changing the iac tps, so thought, great thats it, but it wasnt. I connected the spare iac to the plug with engine running and saw it work as throttle opened, ...